<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>懵萌猛梦</title>
    <style>
        .disc1 {
            width: 100px;
            height: 100px;
            border: 1px solid red;
            background-color: red;
            margin: 160px 0px 0px 300px;
            border-radius: 100%;
            float: left;
        }

        .disc2 {
            width: 100px;
            height: 100px;
            border: 1px solid red;
            background-color: red;
            margin: 109px 0px 0px 0px;
            border-radius: 100%;
            float: left;
            position: relative;
            right: 50px;
        }

        .square {
            width: 100px;
            height: 100px;
            border: 1px solid red;
            background-color: red;
            margin: 160px 0px 0px 0px;
            float: left;
            position: relative;
            right: 152px;
        }

        .main {
            transform: rotate(45deg);
            margin: 43px;
        }
    </style>
</head>
<body>
<h3>敲个代码都是爱你的形状</h3>
<div class="main">
    <div class="disc1"></div>
    <div class="disc2"></div>
    <div class="square"></div>
</div>
</body>
</html>